Home / 8,473.20-12,709.68-3,275.40

Finding the Fourth Proportional to 8,473.20, 12,709.68 and 3,275.40

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Solution

The fourth proportional to 8,473.20, 12,709.68 and 3,275.40 is: 4,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.20 : 12,709.68 = 3,275.40 : x
  2. Step 2: Convert to fraction form
    8,473.20/12,709.68 = 3,275.40/x
  3. Step 3: Cross multiply
    8,473.20x = 12,709.68 × 3,275.40
  4. Step 4: Simplify right side
    8,473.20x = 41,629,285.87
  5. Step 5: Solve for x
    x = 41,629,285.87/8,473.20
  6. Step 6: Final answer
    x = 4,913.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.